Spatial–Spectral Transformation as a Reference Method for Comparing Magnetocardiographic Data

Abstract— Biomagnetic (magnetocardiographic) studies are characterized by two problems: (1) the results of different experimenters cannot be easily compared due to the lack of standardized requirements for equipment (research still ongoing) and (2) the lack of a clearly defined processing technique, such as identifying a false (for example, post-infarction) dipole masked by the main current dipole of the heart. This paper considers the output and analysis of the conversion of biomagnetic data obtained on one structure of the input superconducting converter to another on the basis of spatial–frequency transformations. This method works like an electronic magnifying glass.